If you really want to know about the augs, here is a FAQ concerning their use in Deus Ex. It's really not that useful if you're just reading about them, as the in-game descriptions are quite well written and contain a good amount of science. In the game, they actually explain how all the augs work. Deus Ex contains perhaps more text than any other first person shooter, and they do an excellent job of sucking you into the game's universe. You should give it a try some day, it's certainly one of the best single-player titles on the face of the Earth.
http://www.deusexgaming.com/deusex/help/augguide/